Pasteurizer.



N. 756,012. PATENTBD MAR. 2 9, 1904.

r W. T. FOGAL.

.PASTEHRIZERl APPLICATION FILED .TUNE Z4, 1903. N0 MODEL.

l g whereby .milkorgany,` liquid-,may befheated itof cationsY reference beinghadthereinito hefa'c,l l i A anfapparatusn connection; .Witli-Eavheaternor 170iallwlwiwwww@ m lMB@ ift known that I; WILMAM T.l FOG'AL, a citii-s' zenofftliei United States; ofiAmerica, residing; at Emsvvorth, in the county of AlleghenyJ and Stateof- Pennsylvania,:liaveiinvented certain: new and; ,fuseful Improvements :in /Pasfl tellrijzers, of which the followingsisfa specifi?,

oo mpanyiingdrayvings.5,1; i .A f Th-s.- invention 1 relates Sto certain f new rand; useful improvements in? pasteurzers,l and has; for, itsobject the `proviisioufof novel means;

a desired,temperature-whereby to effectual-ly,- remove; animal heat, Yger-maaieny otherV foreigna matterthelefrom. sa, f to;

.l Another obj ect of Inyinven n to provide burner; said yapparatus being ofesuch clonstruci tiOIlr a5; fto cause'. 1the milk lor liquiditoftravel around the same and -blur-ing its-1tra`velu-be heatedr tol- Suchadegreeias the; same will; be purified from all foreignfmatter; c;

Briefly.described,` lliyin'v'ention comprises a double cone-shaped casing havingfaspiral path upon its exterior surface-iitowhich the' liquid is fed from a suitableresevoinawatersupply in connection With said double coneshaped casing, and a burner disposed underneath the casing whereby the Water carried Within said casing may be heated and said heated Water being in such a position Within the casing as the milk which passes around the same may be heated to any desired degree of temperature.

In describing the invention in detail reference is had to the accompanying drawings, forming apart of this speciicatiom'and Wherein like numerals of reference indicate like parts throughout both views, in Which- Figure 1 is a longitudinal sectional vieW of my improved pasteurizer. Fig. 2 is a top plan view thereof.

To put my invention into practice, I provide a casing substantially in the form of a frustated cone and comprising an outer Wall 1 and an inner Wall 2, which Walls are connected at the top by a Web 8 and at the lower ends by a Web or base 4. The Walls are spaced '1 Ufii i apart, so as :tweenvthe same, ,ton'vvhiehrV chamber Wlat'er' is l fed through t a supply-pipe ,f' 6,v suitably `con.- nected; to .-the casing, as at 7; t, The-.How of Warl ter tliroughthe pipe .6l iscontrolledby--a cock 'tol the `natehelianri'ber 5 fben t0, in said pipe, andrconnected :tothe pipe and communicating therewith ,Sis a graduated tube 8, forming a-zgage tdy indicate fthe, height vof the Waterfintheichamber; f The graduated tube 8 has va safety-valve 9 on its upper end,V

and communication,` is established with the valve and the chamber. 5 atthe top ofthe latten by means of apipe ggf-Which ywill permit of the;

escapeof eXces's'steam-that maybe generated| inithe.,y upper lportfofEWaterch'amber; 5v. f i@in fthe-top of; thecI'asingIsecure in any desirable `mannen-,as, for instance, by .angle-irons 11-.-v az-lc'ircn'larz 'or .annular receivi-ngnec'eptacle` 12,y vprovidedinits base nearthe i'nner'edge with aperturesflththrough which the .milk 0r other p liquid feeds througlhfontothe exterior of fthe casing, Located above said receptacle in any f desi-redmanneris a suitabl'ereceptacle or'tank.

lgithey faucetlsofwliich 'feedsf the liquid,A

fromthe neceptacle intoithez annular receiv., ing-,receptaclel2f- `Theiiow ofthe liq'uidfromii the tanlt 15 iszcon'trolled by; af cock: in lthefau-` cet 16. The outer shell 1 of the casing is provided in its outer face with a spiral groove or Way 17, which receives the liquid from the receptacle l2 and causes said liquid to travel in a spiral path as it descends the casing, and the latter-is Yprovided near its base with an annular trough 18 to receive the liquid, and from Which trough it is conducted through an outlet 19 to any suitable receptacle. (Not shown.) Disposed underneath the casing and preferably connected thereto is a gas-burner 20, having the supply-pipe 21 in communication therewith. This burner is preferably of a circular form and of a diameter' less than the base of the casing, so that the flames from the burner Will strike the inclined sides of the inner shell or Wall and heat the Water contained in the Water-chamber 5. The' supply of milk or other liquid fed to the pasteurizer may be governed by the cock in faucet 16 and also by providing more or less openings size of these openings 14. The provision of the graduated tube 8 enables me to determine at a glance the height of the water in chamber 5, while steam which may be generated in the chamber 5 will be carried olf through pipe 9' and safety-valve 9, so that any increase in pressure either of water or steam above normal may be relieved. To accomplish this end, the weight of the safety-valve is set so that the valve will exhaust when too much steam is contained in the chamber or when the water rises above normal. It will be evident that I may employ any suitable burner; but I preferably place the same so that the flames will strike the inner face of the inner shell or wall 2.

While I have herein shown and described a practical embodiment of my invention, yet it will be evident that in practice various changes may be made in the details of construction without departing from the general spirit of the invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a device of the character described, a double-walled casing of substantially frustated cone shape provided on its exterior with a spiral groove or way, an annular trough carried by the casing near its base to receive the liquid carried thereto by the spiral groove or way, said trough provided with an outlet, a

'water-supply pipe in communication with the space betweenthe walls of the casing, a gage connected to saidwater-supply pipe to indicate the water-level in the space between the casingwalls, a safety-valve carried by said gage, an annular liquid-receiving receptacle supported on the top of the casing and provided with apertures through which the liquid is fed to the exterior wall of the casing, and a heater disposed underneath the casing to heat the water in the space between the walls of the casing, as and for the purpose described.

2. In a pasteurizer, the combination with a heater embodying a burner, of a double-wall casing supported above the burner and provided on its exterior with a spiral way or groove, a water-supply pipe communicating with the space between the walls of the casing, an indicating-gage connected to the water-supply pipe, an annular trough carried by the casing near its base, and provided with an outlet, said trough receiving the liquid from the spiral way or groove, and an annular liquid-receiving receptacle supported on top of the casing and provided ,with circumferentially-arranged openings through which the liquid is fed to the spiral way or groove in the exterior of the casing, substantially as described.

3. In a pasteurizer, the combination with a heater, of a double-wall casing of substantially frustated cone shape provided with a spiral groove or way in its exterior wall, a trough carried by the casing near its lower `end and provided with an outlet, a Water-supply pipe eommunicating with the space between the walls, an indicating-gage connected to the water-supply pipe, a safety-valve on said gage, a pipe communicating with said valve and with the space between the walls to carry ofi the steam generated in said space, and a liquid-receiving receptacle on top of the casing into which liquid is fed, said receptacle having openings in its base through which the liquid is fed to the exterior of the casing, substantially as described.

In testimony whereof I afx my signature in the presence of two witnesses.

WILLIAM T. FOGAL. Witnesses:

E. J. BECHDEL, K. H. BUTLER. 

